Light source device with light gathering effect and back light module using the same light source device
A technology of a light source device and a backlight module, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of limited light angle distribution and uneven light distribution of light guide plate 11, and achieve good light use efficiency and uniform light output effect
Inactive Publication Date: 2007-08-22
AU OPTRONICS CORP
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In addition, this structure will restrict the angular distribution of light in the direction parallel to the light guide plate 11, resulting in uneven distribution of light on the light guide plate 11.
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[0034] The invention provides a light source device and a backlight module using the light source device. In a preferred embodiment, the backlight module is used for a liquid crystal display device. However, in different embodiments, the backlight module can also be used for computer keyboards, mobile phone buttons, signboards and other devices requiring planar light sources. Furthermore, the present invention further includes a liquid crystal display device using the light source device and the backlight module. In a preferred embodiment, the liquid crystal display device of the present invention includes a color liquid crystal display device. However, in different embodiments, the liquid crystal device of the present invention may also include a monochrome liquid crystal display device. In addition, a liquid crystal display device generally refers to a display device using a liquid crystal panel, including liquid crystal televisions for home use, liquid crystal monitors fo...
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The invention discloses a light source device and a backlight module using it. And it comprises lighting component and optical lens, where the optical lens is coated on the lighting component; the lighting component has top lighting surface facing the light incoming side of a light guide component; the optical lens comprises top surface and light collecting side wall surface, where the top surface corresponds to the top lighting surface and is located between the top lighting surface of the lighting component and the light incoming side of the light guide component; the light collecting side wall surface is located on the long side of the optical lens and bends and extends from the edge of the long side of the top surface to the lighting component, and is arranged corresponding to the first advancing direction of the light generated by the lighting component; and the light collecting side wall surface changes the first advancing direction relatively biased into the second advancing direction relatively close to the top surface. And the invention has better light utilization efficiency and more uniform light output effect.
Description
technical field [0001] The present invention relates to a light source device; specifically, the present invention relates to a light source device and a backlight module using the light source device, which are used in liquid crystal display devices. Background technique [0002] The display panel and the panel display device using the display panel have gradually become the mainstream of various display devices. For example, various panel displays, flat-screen TVs for home use, flat-panel monitors for personal computers and laptops, display screens for mobile phones and digital cameras, etc., are all products that use a large number of display panels. In particular, in recent years, the market demand for liquid crystal display devices has grown significantly. In order to meet the functional and appearance requirements of liquid crystal display devices, the designs of backlight modules used in liquid crystal display devices are also increasingly diversified. [0003] For a...
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IPC IPC(8): G02F1/13357G02F1/1335
Inventor 廖经桓蔡卲瑜彭赐光黄志濠
Owner AU OPTRONICS CORP